PEMFC MEA Quality Control Patent Snapshot 2026
The formal patent record for PEMFC MEA quality control is in its earliest stage, with a single patent family on record filed by Hefei University of Technology in China. The field is essentially open, with no established competitive hierarchy and significant room for first-mover positioning.
A nascent field with a single academic filer holding all recorded activity
Hefei University of Technology is the sole ranked applicant in this evidence snapshot, holding the single patent family on record. There is no competitive tier to speak of at this stage.
The top-five filers’ share of the ranked applicants visible in this query stands at 100%, reflecting the fact that only one applicant appears in the ranking at all. No tier gap exists because no second-tier players are present.
| # | Applicant | Patent families | Share |
|---|---|---|---|
| 1 | Hefei University of Technology | 1 |
The leader’s position signals an academic origin for this line of research rather than an industrial one, which is consistent with the pre-commercial nature of formal quality-control methodology for PEMFC membrane electrode assemblies.
Only one patent family appears in scope; activity from the most recent 18–24 months is subject to publication lag and the true number of filings may be higher than current records indicate. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
A single 2025 filing defines the entire recorded trend and technology mix
The annual filing trend shows zero activity from 2017 through 2024, with one patent family appearing in 2025. The technology composition is entirely concentrated in G01N material analysis and testing.
Annual filing trend
The trend line is flat at zero for eight consecutive years before a single filing appears in 2025. The 2025 and 2026 data points are subject to publication lag, so additional filings may not yet be visible in the record.
↗ Hover for values · click a bar to ask EurekaTechnology composition
The sole patent family falls entirely within G01N (material analysis and testing), with sub-class coverage in G01N 21 and G01N 25. No other IPC branches appear in the current corpus, reflecting the diagnostic and characterisation focus of the only recorded invention.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
一种PEM燃料电池金属双极板碳基复合涂层缺陷检测方法
本发明涉及缺陷检测技术领域，揭露了一种PEM燃料电池金属双极板碳基复合涂层缺陷检测方法，包括：对双极板碳基复合涂层施加阶梯式热激励，得到双极板碳基复合涂层对应的多个温度阶梯点；在每个温度阶梯点稳定后，根据每个温度阶梯点下的光学响应数据生成光学响应数据序列；基于基准光学特征数据和光学响应数据序列分析温度阶梯点对应的热致畸变系数序列；对热致畸变系数序列进行微分处理，得到梯度变化曲线，分析梯度变化曲线中的拐点特征；根据拐点特征分析双极板碳基复合涂层的缺陷演化行为，通过缺陷演化行为检测双极板碳基复合涂层的缺陷类型和缺陷等级。本发明可以提高PEM燃料电池金属双极板碳基复合涂层缺陷检测时的精确度。 (excerpt from the patent abstract)
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
Assignee snapshot from the current evidence set
The applicants below are visible in this query result. Because the evidence set is relatively small, read this section as a directional snapshot rather than a full competitive ranking.
Hefei University of Technology
Hefei University of Technology holds the single patent family in this landscape, filed in 2025. Their technology emphasis sits within G01N 21 and G01N 25 — optical and thermal characterisation sub-classes — suggesting a measurement and testing methodology approach to MEA quality control. No momentum data is available from prior periods given the absence of earlier filings.
patent families: 1No challenger identified
No second-ranked applicant exists in the current corpus. The challenger position is vacant, indicating that the assignee snapshot for PEMFC MEA quality control has not yet attracted a second filer within the recorded patent record. This position remains open for industrial or academic entrants.
patent families: —Frequently asked questions
The current evidence corpus contains one patent family in scope, filed in 2025 by Hefei University of Technology in China. Given publication lag for the most recent 18–24 months, the actual number of filed applications may be higher than what is currently visible in the record.
Hefei University of Technology is the only ranked applicant, holding the single patent family on record. No industrial or other academic filers appear in the current corpus.
The sole patent family falls within G01N (material analysis and testing), specifically sub-classes G01N 21 and G01N 25, which cover optical and thermal characterisation methods respectively.
All recorded activity is in China. No PCT, EPO, US, Japanese, Korean, or other national-phase filings appear in the current corpus for this topic.
The evidence corpus is too sparse to assign a formal life-cycle stage. The field is best characterised as pre-emergence: a single academic filing exists, commercial patent prosecution has not begun at scale, and no life-cycle stage determination is supported by the current data.
Two technically adjacent branches are currently sparse: G01R (electrical and electrochemical measurement, relevant to impedance spectroscopy and polarisation diagnostics) and G06T/G06V (image processing and computer vision, relevant to automated defect detection on MEA surfaces). Neither branch shows current filings in the PEMFC MEA quality-control context based on the available evidence.
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Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
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